Magneto.



C. GUNO. MAGNETO.

APPLICATION FILED JAN. 20, 1910,

yPammted N0v.7,1911.

m @N mnw mm EIN Q M L N 4 uw-- r .Q .l G

C. CUNO.

MAGNETO.

APPLICATION FILED 31111.20. 1910.

Patented Nov. 7, 1911.

4 SHEETS-SHEET 3.

35 LSE/k.

. GUNO.v

MAGNETO.

. APPLIOATION PILEUUANJO. 1919.'

vPatented Nov. '7, 1911 4 SHEETS-SHEET 4,

unirsi.) srATEsrarEN-r lonirica. j

CHARLESAICUNO, OF MERIDEN, CONNECTICUT, ASSIGNOR TO THE yCO1\T1\TEC'].]CUTTIF-.ILE-

PHONE 8c ELECTRIC COMPANY, INCORPORATED, 0F MERIIDEN, CONNECTICUT, .A COR- PORATION oF' CONNECTICUT.

in which the parts are compactly assembled and 1n whichsaid parts may be readily disn I assembled forinspec'tion and repair.

ln particular, the invention contemplates among other things, anI improved construction of transforn'ier comprising a casing having the transformer coils and condenser compactly mounted"therein, which casing,4

together with the. coils and condenser, may be bodily withdrawn from operative position without disturbing other parts of the mechanism.

A further object. is to provide an improved arrangement of the electrical connections between `the magneto armature and the interrnpter, the transformer andthe distributer.

A further object is to provide means in conjunctiim with the distributer whereby defective working'of any one of the sparking devices may be readily detected and the particular defect"accurately located without removing orvotherwise ydisturbing any part of the apparatus.

lith these and othei"objects in view, the inventionconsists in the construction and arri'lngement of parts, a preferred embodiment of which is illustrated inthe accom` panying drawings, in which,-

Figure 1 is an end view of `the apparatus,

parts being removed for clear illustrationof certain interior mechanism; Fig. 2 is a vertical sectional view of the device on the line" 2 2. F 1 :f Fig. 3 visa view off 'a p rt1on .of

the distrihuter mechanismdetached; F `4 comprises a side view of the distrihuter'arm detached; Fig. a is a rear view of the distributor arm; Flg. 6 comprises a rear and transverse -sect1onal view of a cap for pro;

Specification of Letters Patent.V

is a full, clear, and exact object of the invention is to providev MAGNETO.

tecting the distributer mechanism; Fig. 7 is a diagrammatic view of the electrical connections of the apparatus. y

In the embodiment of my invention herein selected for illustration, .1 (Fig. Q) indi- Cates a base plate, upon which the field magnets 2 aresuitably mounted and secured, 3

and 4 indicate front and rear end plates 'manner between the poles of the field magnets 2 and is journaled at one end at 7 in the rear end plate 4 and at the opposite end atB in theplate support 9 secured to the front end plate 3, said plate having formed therewith or carrying the cupped bearing 10 for the yinterrupter carrier hereinafter to be described.v Above the armature 6 extends a plate 11 which rests upon the machine frame and is provided with a spring Contact arm l2, having a contact pin 13 engaging thel periphery of one end of the armature, whereby the armature winding is effectively groundedv through the machine frame and ywhereby grounding of the same through the bearings of the armature is avoided. 'Thus any possible sparkingand consequent wear ofthe bearings is eliminated.

The transformer comprises, as indicated 4in Fig.. Q a cylindrical easing 14, having a head 15, provided with a threaded flange 1G, adapted to screw within a threaded boss 17 of the rear end plate 4. The front end plate is likewise provided with a boss 18 adapted to be engaged by the inner hollow end ofthe transformer casing. By this construction Vthe transformer may be readily Ainserted andsecurled within the magneto by screwing 'the y,flange y1G into the boss 17; v p 4ame time, the transformer will. be accurately Ypositioned within the magneto by the engagementof the inner end ofiy the casing withgthe boss 18 on ,the fronti end platefi'.y i They transformer Iproper `comprises theusu'al core 19"havmg a prii'nary winding 2O connected to a leading-.in terminal 21 insulatingly mounted 1n the head 15; and the secondary Winding 79 one terminal of Patented Nov; '7, v191 Application filedv January 20, 1910. Serial No. 539,059. I

Sil

casing at 21%. The opposite ternlinal ol the secondary passes to a contact plate 24 sevcured to theinner end of the transformer caving by which a convenient connection may be made with the distributer arm hereinaitter to he described. The condenser 25 is mounted in the inner` end oi the trans- `former casing adjacent the coil; one side of the condenser being grounded on the casingat 26, and the opposite end connected with the transformer primary by wire 27.

The interrupter or circuit. breaker of Athe magneto comprises, as indicated in Figs. 1 and an annular carrier Q8 having the drcwndn flange 28, which may be readily sling-,led into and ont of the bearing 10 on the supporting plate t?. rlhc i'nterrupter casino also preferably carries an adjusting;m lever Q8, 'by which the moment of sparking may be regulated by the operator of the machine. The particular construe tion et interrupter here illustrated, and' covered specifically in my (zo-pending appiication. Serial No. 537.412, filed January tth. 191.0, comprises a tixed Contact member 29 and a movable contact member 30, each oi which is secured upon an adjustable base plate 3l mounted upon the base of the interruptorcasing 28. The movable contact arm 36 is provided with a cam roll 32 arrallged to be engaged by cam pins 33 Carried by one end of the armature shaft 34 which projects into the interi-opter casing, as indicated in Fig'. 2. Said casing. furthermore. provided with a removable cap or cover zhl. carrying a contact stud or terminal $.36, upon which is mounted a sliding latch nlelnbcr 5l? tor holding the cap or cover .in place said latch member 3T being secured to said stud 36 by the terminal head 36. To locl: the cover 317 upon the interrupted* caving` said lateh member is provided with a slotV 29, sliding` on but insulated from the stud 556, and with the key-hole slot 3f) adapt ed to engage over the end of a headed stud 46 secured to the insulating` casing 4l of the distril'luterlncchallisn'l. 'The upper end ot the latch n'lclnber 3T is provided with a recess4 which engages the stud 4?) of a cap or dover lli ot said distributor mechanism. and rsaid latch lncnlber is also provided with a handle fli- Vtor convenient manipulation. In order to secure the cap of the interrupter iliccll:llli'-il'l in place the larger portion ol' the keyhole slot :lil ot the latch 37 is l'nougllt into regi with the .stud 46 and the latch n'lclllber is then sprung in fardly and at the same time pushed down by the handle 4J until tllc snlaller portion of the key-hole slot engages behind the head of the .'ltud 4() and the recess 42 oi' the latch en- 'Yes the ,idfll 'of the cover 44 for the ,.'fibuter lnechanisln. y this arrangenient both the cap for the interrupter and that for the distributer are held in position by a single latching means.

Electincal connection between the winding of the armature and the interruptor is conveniently eii'ected by` means of a headed contact pin 46 extending through, but insulated from the forward end of the armature shaft 34 and connected with the armature winding by a wire indicated at 4.7, Fig. 2. l'v'ithin the stud 36 on the cover of the .interrupter is mounted a contact pin 48, which, when the cover is in place, contacts with the headed pin 46 of the armature shaft. The fixed contactl member 2t) of the interrupter is also provided with a contact pin 49 adapted to engage a. plate 50, Fig. Q, secured to the interrupter cap, `which plate is insulated from the cap but has electrical connection with the terminal/stud 36. Thus, electrical connection between the armature winding and the interrupter will be automatically effected when the interrupter cap 35 is placed in position.

Connection between the armature winding andthe transformer coil is effected by means of a'connecting member 5l having a clip 52 t'or engagement with the terminal head 36 on the terminal stud 36. The connector 51 is conveniently arranged by evtendinrT the same through apertures 53 and 54 in the end plate 3 and the base 1, respectively, beneath the machine and out. through the base plate into thespaee between the field magnets and the sheathing' 5, then out through an opening in the rear end plate 4 where it is connected by means of a clip 56 with the terminal stud 21 ot the transformer coil. By this means when the ground circuit through the movable arm of the interrupter is broken the armature current will pass through connection 5l to the transforlller.

The. distrihutcr mechanism, as illustrated in Figs. 1, 2 and 3. comprises a distrilluter casing -l-l of insulating material, which is secured preferably to the front end plate 5l b v nleans of screws 5l' and' having;r a distributer chan'lber 58 around which are arranged the several distributer segments 59, connected b v lneans of wires (it) with terlnillal posts 6l, to which the connections to the several sparking devices may be read ily attached. t the rear ot' the distributor casilngr 41 a gear 62 is journaled within the end plate 3. which meshes with a `ear 63- 'I`o econolnlzer fixed to the armature shat't. space and at the salue time to afford a firm and easy bearing,r for the gear 62 the latter i.k provided with a short hub 64 irictionally lllounted in a double 'ball hearing coin-pris ing' all illller bearing lnenlber 65 having two ball races 66. and the outer bearing melllbers 6T which in turn are inclosed by a sleeve or rino'A 68. rl`he ball bearing as a whole is frietionallv held in an aperture 69 in the end'plate B and against a flange. VThe hub 64I has a groove TO'in its cuter end to receive la fsplitcring '7l whereby said hub is securely held within. the inner bearing meinber G51-:indi rotates with the latter. The

two sets of balls of the bearing hold the" gear tiylirmly notwithstandingtheshort length of; the gear hub G-/l at the same time effecting aj'veryfcon'ipact Construction. The proportionl of the gears G2 and 63 one to the other` may be of any desired quantityl to adaptthe saine for use with the particular 'type of engine desired but inthe construction here shownthis proportion is one to two toadapt the same for use with a four cylinder engine. The gear 62 fari-ies the distributei-a-rni 72, having a hub 73 extending through an aperture 74 in the 'rear of the distributcr casing 4l and from said hub a stem extends through the hub of said pinion 62 and is frictionally held thereon Within the distributer arm 72 is mounted a`contact pin 7G (Fig. 4) which is electrically connected with a contactk pin 77 mounted in the stem 75 by means of. inter--` inediateconnectiiig members TF5 and 79, respectivelyj` Theil-ear ofthe distrihuter arm hub is provided vwith a recess SO adapted to engage iinv 81 projecting from the face' of the geen 4 ed ineither one of two sockets 82l in said gear, in order that 'the' distributor arm may be adjusted -to correspond with.adjustments f of the interruptor mechanism for rightand left drive, fullydescribed in my co-pending application above referred to.- As will be seenfrom an inspection of lF ig. 2 the Contact plate `24 ofi'the secondary terminals of the traiisforn'ier is alined with the stem of the distributor arm when the lattcr is in operative position so vthat upon mount-` ing the distributor arm upon the pinion 62, when the transformer `is in place, the. contact pin `117 will engage said contactv plate 24 and thusniale connection with the transformer secondary, whileat the saine vltime`r upon rotation of the contact .arm the contactpin ..76 thereof will etliect connection successivelywith the segments 59 leading to the several spark devices. 1

The arrangement of the circuits` in the. above described nieclianism willlie readily ,understood ifroinan inspection of Fig. 7.

in which [indicates the armature winding;` 29 the rst'at-iona'ry rineiigiber of the `interrupter; 30" "thev Vmovable member thereof; Q0 the primary/ winding of Athe transformer.; 22"the.siecondary winding'g-l the connectionA between the f yarmature and the.; transforme .5 :72" the distributer, arni-;-,59V

the distrib ter segmentsgl the transformencondenser'vand S the' ,sparky plugs ofthe en ine.. p

n operation of mechanism of this character it frequently happens that the sparklsi'ilting in failure `of'they firing` action. l

isextremelyimportant, therefore, not only 9. vThis pin 3l maybe mountf ing devices of one or more cylinders become defective through ct'irrosion or otherwise reto detectthc fact of such defective action but alsoto locate exactly the point at which it occurs.

is at all times in electrical donnection with rvr- ' vide the cap or cover 4st of the distributer mechanisn'i land a plate or disk Slt electrically connected with the stud 43 of the cover which in turn is electrically connected to thc spring latch member 37 when the latteris iiilockii'ig position. This latch member, as will be seen in Fig` :2, is ground-y ed upon the cap or cover 35 when the latter is in position upon the interruptor mecha- To thisrend I provide upon the distributer arm a sparking point 83, which 'nisi-n. By this construction should rdefective f action occur ,at the spark plugs of any cylinder of the engine or between the contact pin 76 of the d'istrihuter arm and any one of the segments 50 ofthe distributer mechanisni7 thehigli tension current of the. transformer secondary will cause a vsparkto pass between the point 'S3 and the disk 84 uponthe cover plate 44;' ln order that this sparkv or flash may be readily detected without .95. `removing any parts oftlie mechanism the y cover 44 provided with a plurality of*` openings or windows 85,5Figs. 2 and 5, over which extends a disk 8G of mica or other `translucent material.` One of these openingsor windows is located opposite or ad- ]acent to each of the contact segments 59 of the distributcr mechanism, so that in case of defective action at any one'l of these points, a flash will appear at the window located adjacent thereto," and the particular scgn'icnt of the' n'iechanisin Yat which such `defective action occurs will be indicated by the particular window at which the flash To properly ventilate the chamber within which the distributer arm operates and to` prevent thc accumulatioii of ozone therein duc to the occurrence of the spark, each one Vof the windows isprovided with a per- .,fora'tion 9'7", which is made large enough .to admitI sufficient air for Ventilating pur- Yposes hut small enough to eifectually prevent access of dirt or moistureto tlie`.distributingl mechanism. ln order to insure the lo` 88,. which fltsiover the 'latch .pin 40 projecting Vfrom .the.distributerwcasing4A a preferred embodiment of=my invention,A itf is to be understood that the saine may be modified in details and relative arrangement a While InhaV'e/hereinshown anddesc'ribed" of parts within the scope ot' the al'ipended claims.

What l claim is:

l. ln a high tension magneto ignition apparatus. the combination with a supportharmg an armature and field magnets mounted thereon, ot a transformer, distributer mechanism including a distributor arm, said transformer and arm being so constructed and arranged that they may be removably mounted on said support after the other parts of the magneto are assemble/d, and means lor automatically effecting electrical connection between said transformer and said distributer arm by the mounting of said parts on said support.

Q. ln high tension n'iagneto ignition apparatus, the combination with a support having an armature and field magnets mouiited thereon,of a transformer having a easing constructed and arranged to be reclosing said parts and comprising end p movablyY mounted upon said support after the other parts of the magneto have been assembled. distributor mechanism on said support including a distributer arm, said trans- 'former haring an exposed secondary contact and said distributcr arm having a contact, said contacts being constructed and arranged to automatically efl'eet electrical connection upon assembling said part-s on said support.

3. ln high tension magneto ignition apparatus. the combination with an armature and field inagnets therefor, of a main casing inclosing said parts, a transformer comprising a easing constructed and arranged to he removably7 inounted on said main casing' at'- ter the other parts of the magneto and main easing have been assembled` distributer mechanism on said main easing including a distributer arm, and means for automatieallv effecting electrical connection between said transformer and distributor arm upon mounting the former on said casine'.

-l-. in high tension magneto ignition apparatus. the combination with Aan armature and field magnets therefor. ot a main casing inelosing said parts` an opening in said casing adjacent the bow of said field magnets. a transformer ineludiiig a casing therefor adapted to be inserted and held within said opening and to lie within the bow of said inagi'iets. distributer mechanism on said ma in casing including a distributer arm, and means for' automatieally effecting electrical connection between said transformer and said distributer arm upon mounting said transformer in said casino.

in high tension magneto ignition apparatus. the combination with an armature and field magnets therefor, of a casing inates, an opening` in one of said end plates, and a boss on the opposite end plate, a transformer including a` casing adapted to be inserted in said openmgrtovlievrwithin the bow of the field magnets, said t 'anst'ormei when in op eratire position being supported at one end in said opening and at the opposite end on said boss, distributer mechanism on said main casing, and means to effect electrica-,l connection between said distributor mechanism and said transformer upon mounting the latter on said casing.

G. ln high tension magneto ignition apparatus, the combination with an armature and field magnets therefor, of a casing ineiosing lsaid parts, a transformer haring primary terminal at one end and a secondary terminal at the opposite end, said transformer being constructed and arranged to be remorabl)Y mounted on said main casing and within the bow of the field magnets after the casing and other parts of the niagneto are assembled, distributer mechanism carried by said main casing, and means for automatically effecting electrical connection between said secondary terminal and said distributer mechanism upon mounting said transformer on said main casing.

7. In high tension magneto ignition apparatus, the combination with an armature and field magnets therefor, ot' a casing inclesing said parts, a threaded opening in said casing adjacent the bow of said field magnets, a transformer haring a cylindrical, easing adapted to be screwed into said aperture and to be supported within `the bow of said field magnets.

8. In high tension magneto ignition apparatus, the combination with an armature and tie-ld magnets therefor, of .a casing inelosing said partsv` a threaded aperture in said easing, and a boss on said easing opposite lsaid thr aded aperture., and' a transformer haring a. cylindrical casing adapted to be screwed into said aperture to lic Within the bow of the field magnet and to be fsupported at one end in said aperture, the

opposite end of said transformer casing being supported upon said boss.`

9. In high tension magneto ignition apparatus, the combination with an'armatnre and field magnets therefor, of a easing inclosing said parts, a transformer eol'istructed and arranged to be removably mounted on said casing and within the bowv of the field magnets after the other parts of the magneto have. been assembled, distributor mechanism mounted upon said casing including a distributer arm, a gear on said casing carrying said arun a gear on the shaft of said armature meshing with said first mentioned gear, said distributer arm haring a stem eirtending to said transformer when in operative position, and'contacts on said transformer and said stem arranged to effect electrieal connection a'utol'natieally between said transformer/and said distributer arm when saidparts are assembled on said main casing.

10. In high tension Amagneto ignition apparatus, the conibination with an armature and lield magnets therefor, of a main casing, distributor mechanism mounted on said main casing including a distritmterarm, a a gear vJournalecl boss on said malin casing, in a ball bearing mounted 1n said'boss operatively connected' with the armature shaft,t

a distributer arm carried by said gear, an aperture in said mainY casing opposite said boss, a transformenhaving a casing adaptedv to be supported at one end within said aperture and at the opposite end on said boss, thereby inclcsing and protecting said hearing, a Contact for said arm, and a contact on said transformer adapted to effect electrical connection automatically upon assembling said arm and transformer on said main casing.

ll. in high tension magneto ignition ap? paratus, th'e con'ibination ywith a magneto oie distributor mechanism and interrupter mechanism mounted thereon, a removable cap or cover -for each of said mechanisms, and a single spring latch adapted to hold both of said caps or covers in place.

l2. ln high tension magneto ignition'apparatus, the combination with a magneto ot' distributor mechanism and interrupter mechanism mounted thereon, a removable cap for each ot' said mechanisms, a sliding latch permanently crnnected to one of said caps and adapted to engage the other ott said caps to hold said caps in position.

13.' ln high tension magneto ignition apparatus, the combination with a magneto of distributer mechanism and intcrrnpter mechanism mounted thereon, a removable cap for each of said mechanisms, ay fixed headed stud adjacent said mechanisms, and a spring latch slidably mounted on said stud and adapted to hold both of said caps in position.

la. ln high tension magneto ignition apparatus, the combination with a magneto ot distributor mechanism and interruptor mechanism mounted thereon, a. removable rap for each oi" said mechanisms, a iixed headed sind adjacent said mechanisms, and a sliding spring latch permanently attached to one ot' said caps having locking means for engaging .sa/id stud and adapted to eilgage the other cap to holtlboth of said Caps in position.

15. ln high tension magneto ignition apparatus, the combination with a magneto ot' ldistributer mechanism and interruptor mechanism mounted thereon, a removable cap for each of said mechanisms, one of said caps having a headed stud, a spring latch slidably engaging said stud, and a fixed stud adjacent 'said mechanisms having locking` means adapted to 'engage said latch, said latch being arranged to engagclthe other cap and to hold both of said caps in position when locked by saidloclting means.

tti. ln high tension magneto ignition apparatus, the combination with a magneto of ,distribiiteig mechanism mountedy thereon and including a distributer brush, means tor in- :li,cating defective action in said distributor, a ,removablegcap for said distributer, interi'upter mechanismmounted on. said magneto, a removable-cap therefor-,anda single latch constructedand arranged-to hold'said caps in position, said latch forming la ground connection for said indicator means.

17. in high tension magneto ignition appa "atas, the combinationwith a magneto of distrihuter mechanism' mounted thereon having means for indicating defective action in said distributer mechanism, a removable cap forsaid mechanism, interrupter mechanism c arr'ed by said magneto, a removable cap for said interrupter mechanism, and a spring'latch adapted to engage said caps respectively to hold the same in operative position, said latch being connected with said indicator means and being vgrounded through said interruptor cap when said caps are in position.

18. ln high tenfsion magneto ignition apparatus, the combination with an armature and lield'magnets therefor, of a frame supporting said part-s, a transformer comprising a casing adapted to be removably mounted in said frame, primary and secondary' Vwindings and a condenser Within said casing, a primary terminal at one end of said casing and a. secondary terminal at the opposite end of said casing, said Windings vand condenser adapted to be automatically gri'iunded through lsaid casing when the latter is mouiited in said traine, distributer mechanism carried by said trame including a distributer brush having a terminal adapted to project into said casing to make contact with the secondary of said transformer automatically when said casing is mounted in said trame.

i9. r1 transformer for high tension magneto apparatus adapted to be removably mounted thereon and comprising a cylindrical casing having primary and secondary windings mounted therein, a condenser mounted in one end of said casing and connected with said primary, said primary, secgrounded on said casing, distributor. mechausm carried by said magneto apparatus,-a primary terminal at one end of 'said casing, and a secondary terminal at the opposite cud ot said casing, said secondary terminal adapted to be connected automatically with said distributer mechanism when said transformer is mounted on said apparatus.

Q0. ln high tension magneto ignition aplparatus, the combination with a magneto ondary and condenser being arranged to be :lml distrbuter mechanism mounted thereon. ing arranged to make automatic connection l A l of a transforn'xer constructed and arranged I to he removably mounted 0n said magneto l casing is mounted on said magnet@ after lhe magneto and dstl'ibuter mecha- CHARL GURU@ nsm have been assembled, and compri-Sing a casing having primary and ASecondary ter" minnle thereon, Said Secondary terminal bei 7i messes CHAS. A. PEARDY, M. E. GARRETT.

with Said dstrbnter mechanism when said 

